Month: April 2019

  • Prerequisite installation failed: RewriteModule

    Well – it’s been a while hasn’t it? I don’t really blog much any more. Or rather I seem to have switched to YouTube. Anyway, I’ve been recently configuring some Skype for Business Server 2015 units running on Windows Server 2016, and during the ‘Setup Skype for Business Server Components’ part it keeps failing with a ‘Prerequisite installation failed: RewriteModule’.

    It’s fair to say it was getting a bit irritating. Anyway, after a fair bit of digging it seems to be the value of this key:

    HKEY_LocalMachine\SOFTWARE\Microsoft\InetStp\MajorVersion

    Any number above 7 and it seems to kill the installation. The pragmatic solution? Set it to 7 – do the installation – and then set it back to what it was. In my case it was 10(Hex).

    Hope that helps somebody out there!